15r+-16=-20

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Solution for 15r+-16=-20 equation: 



15r+-16=-20

We move all terms to the left:

15r+-16-(-20)=0

We add all the numbers together, and all the variables

15r+4=0

We move all terms containing r to the left, all other terms to the right

15r=-4

r=-4/15

r=-4/15

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